Drive-chain



(No Model.)

G. W. SCHWARTZ, Jr. DRIVE CHAIN.

' No. 564,030. Patented July 14, 1896.

U ITED STATES PATENT OFFICE;

CHARLES w. SCHWARTZ, JR, or PHILADELPHIA, PENNSYLVANIA.

DRIVE-CHAIN.

SPECIFICATION forming part of Letters Patent No. 564,030, dated July 14,1896.

Application filed April 17,1896. Serial No. 587,936. (No model.)

To all whom it may concern.-

Be it known that 1, CHARLES W.,SoHwARTz,

Jr. a citizen of the United States, residing at Philadelphia,(Germantowm) in the county of Philadelphia and State of Pennsylvania,have invented certain new and useful Improvements in Drive-Chains, ofwhich the following is a specification.

My invention has relation to an improvement in drive or conveyer chainsof the character in which the links thereof are detachable from oneanother, each link being adapted to receive a movable roller, which isreadily attached to and detached from the same; and it relatesparticularly to the construction and arrangement of the rollers andlinks of such a chain.

The principal objects of my invention are, first, to provide a simple,durable, and strong drive or conveyer chain in which the links arereadily detachable and each link adapted to receive a movable roller,which may be readily and quickly attached to and detached from the same,and, second, to provide a detachable link, consisting of a frame or bodythe flat side bars of which terminate at one end in a transverse pintleprojecting outward beyond the recessed portion thereat of each side barand at the other end termi-j nating in two eyes, the transverseperforations of which are each of a diameter large enough to receive thepintle of an adjacent link and to permit of the same being slidthroughthe eyes, one of said eyes being radially slitted to a widthsufficient to permit of the sliding therethrough of that portion of aside bar or arm adjacent to the pintle of the adjacent link, and thesaid pintles adapted to both receive a transversely-perforated andradiallyslotted roller, when the same is slid over said side bars orarms and onto the pintle to constitute a bearing therefor, and also soas to permit said roller to revolve thereon.

My invention, stated in general terms, consists of a'drive'or conveyerchain constructed and arranged in substantially the manner hereinafterdescribed and claimed.

The nature and scope of my invention will be more fully understood fromthe following description, taken in connection with the accompanyingdrawings, forming part hereof, and in which- Fignre 1 is a perspectiveView of three links of a drive or conveyer chain secured togetherembodying features of my invention with a roller, mounted on the pintleof one link and so as to be free to rotate thereon, and also to beremoved therefrom; and Fig. 2 is a similar view of three links and aroller, the same being turned into such positionas to show how theroller may be readily detached from or mounted upon its pintle and thelinks also readily detached from one another.

Referring to the drawings, A, A, and A represent three links, eachprovided with two flat and broad arms a and ct, arranged parallel toeach other and provided at one end with right-angular recesses a? and aand with an integral transverse pintle b, the outer ends I) and bprojecting to the outer sides of the said side bars or arms a and a. Atthe other end of the side bars or arms a and a are formed the eyes 0 anda, each of which is perforated, as at 0 in a transverse direction. Theopenings 0 of the eyes ,0 and c are of sufficient diameter to permit ofthe sliding of a pintle l) of an adjacent link throughsaid eyes. One ofsaid eyes, 0, is also provided with'a radial slit d, extending from theperforation c to and through the peripheryof the same. This slit dissufficiently wide to permit of the sliding of either side bar or armthrough the same and pintle b through the', perforations c of the eyes 0and c in connecting or separating two adjacent links of the seriesconstituting a conveyer-chain.

On the pintle b is adapted to be slid one or more rollers e, each ofwhich is provided with a transverse perforation e and a radial slit orslot 6 corresponding, respectively, in diameter and width with that ofthe perforation a and width of the slot cl, that is, the roller, byreason of the perforation e and slot 6 is adapted to be slid over theside bar or arm a or a, and a pintle b to occupy a position such as isillustrated in Fig. 1; whereon it is adapted to freely rotate betweensaid side bars or arms a and CL of a link.

In operation to disconnect the links A, A, and A from one another, aswell as to remove the roller 6 from a pintle b, the links are broughtinto the position indicated in Fig. 2, in which the side bars or arms aand o of one link are in alineni'ent with the slot 01 of the eye 0 ofthe adjacent link, and the roller 6 is likewise turned so that its slot6 is in alinement with the slot d. One link may then be withdrawn fromthe other, its side bars or arms a and a and pintle b sliding throughthe roller e and the eye 0' of the adjacent link. In the same manner toconnect the links and to mount the roller 6 upon a} pintle b the linksare brought into relationship with each other, substantially asdescribed and illustrated in Fig. 2 of the series of links, each havingtwo side bars or arms provided at one end of each with a single eye, oneof said eyes being radially slitted, said side bars terminating at theother end in a transverse solid cylindrical cross bar or pintle, eachside bar being provided at its outer edge With a recess partlyseparating the bar from the pintle and adapted to receive the eye of theadjacent link to permit of the articulation of the eyes upon saidpintle, and a detachable slitte'd friction-roller mounted upon andadapted to freely rotate on the pintle between the sidebars,substantially as and for the purposes described.

In testimony whereof I have hereunto set my signature in the presence oftwo subscribing witnesses.

CHARLES W. SCHWARTZ, J

Witnesses J. WALTER DOUGLASS, THOMAS M. SMITH.

